:root {
  --fondo: #0f1426;
  --tarjeta: #171d33;
  --texto: #ece6d6;
  --suave: #b8b2a3;
  --oro: #d4af5f;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: linear-gradient(135deg, #0c1226 0%, #2a1c4a 100%) fixed;
  color: var(--texto);
  font: 17px/1.65 Georgia, 'Times New Roman', serif;
}
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 20px 72px;
}
header { text-align: center; margin-bottom: 36px; }
.sello {
  width: 88px; height: 88px; border-radius: 50%;
  border: 3px solid var(--oro);
  display: inline-flex; align-items: center; justify-content: center;
  font-style: italic; font-size: 34px; color: var(--texto);
}
h1 { font-weight: normal; font-size: 30px; margin: 18px 0 6px; }
h2 { color: var(--oro); font-weight: normal; font-size: 21px; margin-top: 32px; }
p, li { color: var(--texto); }
.sub { color: var(--suave); margin: 0; }
section {
  background: var(--tarjeta);
  border: 1px solid rgba(212, 175, 95, 0.25);
  border-radius: 14px;
  padding: 8px 26px 22px;
  margin-bottom: 22px;
}
nav { text-align: center; margin: 26px 0 0; }
nav a { color: var(--oro); margin: 0 10px; text-decoration: none; }
nav a:hover { text-decoration: underline; }
.fecha { color: var(--suave); font-size: 14px; text-align: center; margin-top: 28px; }